How to maintain the box type experimental muffle furnace?

The maintenance of the box type experimental muffle furnace is the key to ensuring its long-term stable operation and extending its service life. Here are some main maintenance methods and precautions:
1. Regular calibration and inspection
Temperature calibration: Calibrate the temperature display using a standard thermometer at specified time intervals to ensure the accuracy of temperature readings.
Connection line inspection: Regularly check whether the connection line between the thermocouple and the control system is loose or damaged, and repair it in a timely manner to ensure stable signal transmission.
2. Cleaning and maintenance
Cleaning the thermocouple: Be careful to clean the dirt or impurities on the thermocouple to ensure good temperature sensing.
Furnace cleaning: Regularly keep the furnace clean, promptly remove impurities such as oxides inside the furnace, and prevent corrosion to the furnace and electric heating elements.
Control instrument maintenance: Keep the instrument clean, avoid dust, moisture, etc. from entering, and check whether the buttons, display screens, etc. are working properly.
3. Environmental control
Working environment: The muffle furnace and controller must be operated in a location with a relative humidity not exceeding 85%, free from conductive dust, explosive gases, or corrosive gases to ensure the safety and stability of the equipment.
Cooling environment: Ensure a good cooling environment around the control system to avoid overheating and affecting performance.
4. Operating standards
Oven treatment: When the muffle furnace is first used or reused after a long period of disuse, oven treatment must be carried out. The oven treatment time is usually four hours from 200 ℃ to 600 ℃ to remove moisture and impurities inside the furnace.
Temperature control: During use, the maximum furnace temperature should not exceed the rated temperature to avoid burning out the electric heating elements. Meanwhile, avoid pouring various liquids and easily soluble metals into the furnace.
Sample processing: When installing the sample, be sure to cut off the power supply to prevent electric shock. It is prohibited to place samples contaminated with water and oil into the furnace, nor to use clamps contaminated with water and oil to collect samples. The sample should be placed in the middle of the furnace, neatly arranged, and not randomly placed.
5. Software and Data Management
Software updates: Pay attention to device notifications and update control system software in a timely manner to optimize performance.
Parameter backup: Regularly backup the parameter settings of the temperature control system to prevent data loss.
6. Professional maintenance
Regular maintenance: Please have technical personnel conduct comprehensive inspections and maintenance regularly to ensure that all functions of the equipment are functioning properly.
Record maintenance status: Detailed records of the content and time of each maintenance, facilitating tracking and analysis of equipment operation.
In summary, the maintenance of the box type experimental muffle furnace involves multiple aspects, including regular calibration and inspection, cleaning and maintenance, environmental control, operating standards, software and data management, and professional maintenance. By implementing these maintenance measures, the stable operation and extended service life of the muffle furnace can be ensured.